物是人非事事休口是心非夜夜心
[wù shì rén fēi shì shì xiū kŏu shì xīn fēi yè yè xīn]
This username juxtaposes two idioms. '物是人非事事休' means 'Though things remain, the people have changed, all matters come to an end,' signifying changes over time leading to feelings of melancholy or resignation. '口是心非夜夜心' can be understood as a nightly reflection on saying one thing but meaning another, expressing internal struggle and inconsistency.